Home / 10,190.60-15,288.02-3,171.12

Finding the Fourth Proportional to 10,190.60, 15,288.02 and 3,171.12

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Solution

The fourth proportional to 10,190.60, 15,288.02 and 3,171.12 is: 4,757.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.60 : 15,288.02 = 3,171.12 : x
  2. Step 2: Convert to fraction form
    10,190.60/15,288.02 = 3,171.12/x
  3. Step 3: Cross multiply
    10,190.60x = 15,288.02 × 3,171.12
  4. Step 4: Simplify right side
    10,190.60x = 48,480,145.98
  5. Step 5: Solve for x
    x = 48,480,145.98/10,190.60
  6. Step 6: Final answer
    x = 4,757.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.